BidiOrder (iText 5.5.13.1 API)

java.lang.Object
- com.itextpdf.text.pdf.BidiOrder

public final class BidiOrder
extends Object

Field Summary

Fields
Modifier and Type	Field and Description
`static byte`	`AL` Right-to-Left Arabic
`static byte`	`AN` Arabic Number
`static byte`	`B` Paragraph Separator
`static byte`	`BN` Boundary Neutral
`static byte`	`CS` Common Number Separator
`static byte`	`EN` European Number
`static byte`	`ES` European Number Separator
`static byte`	`ET` European Number Terminator
`static byte`	`L` Left-to-right
`static byte`	`LRE` Left-to-Right Embedding
`static byte`	`LRO` Left-to-Right Override
`static byte`	`NSM` Non-Spacing Mark
`static byte`	`ON` Other Neutrals
`static byte`	`PDF` Pop Directional Format
`static byte`	`R` Right-to-Left
`static byte`	`RLE` Right-to-Left Embedding
`static byte`	`RLO` Right-to-Left Override
`static byte`	`S` Segment Separator
`static byte`	`TYPE_MAX` Maximum bidi type value.
`static byte`	`TYPE_MIN` Minimum bidi type value.
`static byte`	`WS` Whitespace

Constructor Summary

Constructors
Constructor and Description
`BidiOrder(byte[] types)` Initialize using an array of direction types.
`BidiOrder(byte[] types, byte paragraphEmbeddingLevel)` Initialize using an array of direction types and an externally supplied paragraph embedding level.
`BidiOrder(char[] text, int offset, int length, byte paragraphEmbeddingLevel)`

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`byte`	`getBaseLevel()` Return the base level of the paragraph.
`static byte`	`getDirection(char c)`
`byte[]`	`getLevels()`
`byte[]`	`getLevels(int[] linebreaks)` Return levels array breaking lines at offsets in linebreaks.
`int[]`	`getReordering(int[] linebreaks)` Return reordering array breaking lines at offsets in linebreaks.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - L
```
public static final byte L
```
    Left-to-right
    
    See Also:
    
    Constant Field Values
  - LRE
```
public static final byte LRE
```
    Left-to-Right Embedding
    
    See Also:
    
    Constant Field Values
  - LRO
```
public static final byte LRO
```
    Left-to-Right Override
    
    See Also:
    
    Constant Field Values
  - R
```
public static final byte R
```
    Right-to-Left
    
    See Also:
    
    Constant Field Values
  - AL
```
public static final byte AL
```
    Right-to-Left Arabic
    
    See Also:
    
    Constant Field Values
  - RLE
```
public static final byte RLE
```
    Right-to-Left Embedding
    
    See Also:
    
    Constant Field Values
  - RLO
```
public static final byte RLO
```
    Right-to-Left Override
    
    See Also:
    
    Constant Field Values
  - PDF
```
public static final byte PDF
```
    Pop Directional Format
    
    See Also:
    
    Constant Field Values
  - EN
```
public static final byte EN
```
    European Number
    
    See Also:
    
    Constant Field Values
  - ES
```
public static final byte ES
```
    European Number Separator
    
    See Also:
    
    Constant Field Values
  - ET
```
public static final byte ET
```
    European Number Terminator
    
    See Also:
    
    Constant Field Values
  - AN
```
public static final byte AN
```
    Arabic Number
    
    See Also:
    
    Constant Field Values
  - CS
```
public static final byte CS
```
    Common Number Separator
    
    See Also:
    
    Constant Field Values
  - NSM
```
public static final byte NSM
```
    Non-Spacing Mark
    
    See Also:
    
    Constant Field Values
  - BN
```
public static final byte BN
```
    Boundary Neutral
    
    See Also:
    
    Constant Field Values
  - B
```
public static final byte B
```
    Paragraph Separator
    
    See Also:
    
    Constant Field Values
  - S
```
public static final byte S
```
    Segment Separator
    
    See Also:
    
    Constant Field Values
  - WS
```
public static final byte WS
```
    Whitespace
    
    See Also:
    
    Constant Field Values
  - ON
```
public static final byte ON
```
    Other Neutrals
    
    See Also:
    
    Constant Field Values
  - TYPE_MIN
```
public static final byte TYPE_MIN
```
    Minimum bidi type value.
    
    See Also:
    
    Constant Field Values
  - TYPE_MAX
```
public static final byte TYPE_MAX
```
    Maximum bidi type value.
    
    See Also:
    
    Constant Field Values
- Constructor Detail
  - BidiOrder
```
public BidiOrder(byte[] types)
```
    Initialize using an array of direction types. Types range from TYPE_MIN to TYPE_MAX inclusive and represent the direction codes of the characters in the text.
    
    Parameters:
    
    types - the types array
  - BidiOrder
```
public BidiOrder(byte[] types,
                 byte paragraphEmbeddingLevel)
```
    Initialize using an array of direction types and an externally supplied paragraph embedding level. The embedding level may be -1, 0, or 1. -1 means to apply the default algorithm (rules P2 and P3), 0 is for LTR paragraphs, and 1 is for RTL paragraphs.
    
    Parameters:
    
    types - the types array
    
    paragraphEmbeddingLevel - the externally supplied paragraph embedding level.
  - BidiOrder
```
public BidiOrder(char[] text,
                 int offset,
                 int length,
                 byte paragraphEmbeddingLevel)
```
- Method Detail
  - getDirection
```
public static final byte getDirection(char c)
```
  - getLevels
```
public byte[] getLevels()
```
  - getLevels
```
public byte[] getLevels(int[] linebreaks)
```
    Return levels array breaking lines at offsets in linebreaks.
    Rule L1.
    The returned levels array contains the resolved level for each bidi code passed to the constructor.
    
    The linebreaks array must include at least one value. The values must be in strictly increasing order (no duplicates) between 1 and the length of the text, inclusive. The last value must be the length of the text.
    
    Parameters:
    
    linebreaks - the offsets at which to break the paragraph
    
    Returns:
    
    the resolved levels of the text
  - getReordering
```
public int[] getReordering(int[] linebreaks)
```
    Return reordering array breaking lines at offsets in linebreaks.
    The reordering array maps from a visual index to a logical index. Lines are concatenated from left to right. So for example, the fifth character from the left on the third line is
```
 getReordering(linebreaks)[linebreaks[1] + 4]
```
    (linebreaks[1] is the position after the last character of the second line, which is also the index of the first character on the third line, and adding four gets the fifth character from the left).
    The linebreaks array must include at least one value. The values must be in strictly increasing order (no duplicates) between 1 and the length of the text, inclusive. The last value must be the length of the text.
    Parameters:
    
    linebreaks - the offsets at which to break the paragraph.
  - getBaseLevel
```
public byte getBaseLevel()
```
    Return the base level of the paragraph.

Class BidiOrder

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

L

LRE

LRO

R

AL

RLE

RLO

PDF

EN

ES

ET

AN

CS

NSM

BN

B

S

WS

ON

TYPE_MIN

TYPE_MAX

Constructor Detail

BidiOrder

BidiOrder

BidiOrder

Method Detail

getDirection

getLevels

getLevels

getReordering

getBaseLevel